issue related to aggregation

[swetarai763]

i need to understand this clause which is written by using bodybuilder

body.aggregation('terms', underfined, 'terms', elasticAggregationHelper.termOptions('type','_count'));

I am not able to understand this termOptions and not able to find it on bodybuilder site
could you please guide me @danpaz
Thanks

[Ferron H]

https://bodybuilder.js.org/docs/#aggregation

[swetarai763]

Hi I have go through to this doc but not able to understand the last clause i.e termOptions Could you please guide. Thanks, sweta

…

On Wed, Jul 24, 2019, 7:02 PM Ferron H ***@***.***> wrote: https://bodybuilder.js.org/docs/#aggregation — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#232?email_source=notifications&email_token=AMWCUDYTG5X765Y3OK2A6TTQBBKWBA5CNFSM4IGNSF6KYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD2WK5CA#issuecomment-514633352>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AMWCUDZLNCMEDSYD3XITEA3QBBKWBANCNFSM4IGNSF6A> .

[Ferron H]

The last parameter is for nested aggregation (agg with-in an agg /sub agg).
A simple example would be this. Let's say I'm generating an aggregation for tags, but with-in that aggregation I want to aggregation the publishers of those tags.

You can think of it as a sub-query

I'd do something like this :

bodybuilder()
.aggregation('terms', 'tags.keyword', { size: 10 }, 'top-tags', (a1) => {
      return a1.aggregation('terms', 'publishers.keyword', { size: 10 }, 'top-publishers')
    }).build()

{
  "aggs": {
    "top-tags": {
      "terms": {
        "field": "tags.keyword",
        "size": 10
      },
      "aggs": {
        "top-publishers": {
          "terms": {
            "field": "publishers.keyword",
            "size": 10
          }
        }
      }
    }
  }
}